My Notes On OSI (Open System Interconnect) Model

 My Notes On OSI (Open System Interconnect) Model

Q1. What is the function of OSI Model?

Ans: OSI (Open System Interconnect) Model provides a guideline of how data communication takes place over the network and in multivendor environment.

Q2. Who has developed the OSI Model?

Ans: The OSI Model is developed by ISO (International Standard Organization).

Q3. What is the function of ISO in OSI Model?

Ans: ISO divided the whole process into smaller tasks.

Q4. What are called Layers? And how many layers or groups are there in OSI Model?

Ans: Groups are called Layers.

                                                     In OSI Model there are 7 layers or groups.

Q5. Why groups are called layers in OSI Model?

Ans: Groups are called layers because if technology changes to implement tasks defined in one layer then its adjacent upper and lower layers technology need not be changed. Thus the development will be easy and smooth.

Q6. What is the function of protocols in each layers of OSI Model?

Ans: Protocols in each layers of OSI Model performs the tasks defined in that layer.